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Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Echinodermata (Echinoderms)
Sea urchin (Echinoidea)
Cidaroidea
Cidaroida

Ctenocidaridae (16545131)

Children (5 direct children, 34 direct and indirect children):

Aporocidaris (tree size 7)

Ctenocidaris (tree size 10)

Rhynchocidaris (tree size 1)

Homalocidaris (tree size 1)

Notocidaris (tree size 10)